1st rule UNIFORMITY: interbreeds in first generation all look alike a
mixture of both parents
2nd rule FIRST SPLITTING RULE: in the following inbreed generation they will
split up 1:2:1 (1 each like one parental part, the 2 (50%) like the
interbreed generation.
3rd rule SECOND SPLITTING RULE: the second inbreed generation will split
12.5% - 12.5 - 25 - 25 - 12.5 - 12.5. This all is for genetic rcombination
of a binarial character. Phenotypes may not represent this as there are
dominant/recessive genes/allels. The 12.5 will most possibly show up as 2
groups rather than four so it will look phenotypically as rule 2. But the
more genes/alles are combined the more the splitting will be detectable.
But there also may not be any fry because of possible infertility when
interbreeding different strains/locations even within one species. That4s
what biologists have dispute about with genetics - depends on the definition
of what is a species (MAYER 1978 or Cladistic view or Genetic view). Big
topic within certain fish families.
Good luck and let us know the results!
Steffen
> Von: Mysteryman <bestfish_at_alaweb.com>
> Antworten an: nanfa_at_aquaria.net
> Datum: Wed, 25 Jun 2003 14:15:19 -0700
> An: nanfa_at_aquaria.net
> Betreff: NANFA-- My house is full of Damselflies, and I feel like playing
> Frankenstein
>
> I have a tank in my house set aside for growing greenwater for fryfood,
> and today a swatted a big fly. Upon inspection I noticed it was a
> damselfly. Later, in the fishroom, I found myself swarmed by damselflies
> of every color. A quick look in the algae tank showed plenty more
> larvae.
> I'm not sure just what these guys have been eating. I can only conclude
> that damsel larvae eat different things than dragonfly larvae ( fish ).
> Anyway, I rounded them up and set them free outside, where they'll no
> doubt start hanging around my pools.
> Have any of you had any similar experiences?
>
> On a different topic, I figured out that the Sailfin Shiners with the
> gorgeous green sides are the ones from around Edisto Island, SC.
> Otherwise they're unremarkable and dull. The redfinned ones from around
> Gainsville are fairly standard in the body, but have the pretty red
> fins. QUESTION: if the two were crossed, what do you suppose would be
> the result?
> I tend to think that 3/4 of the resulting fry would look terrible, or
> maybe even 15/16 of them, but the rest might be amazing redfinned,
> greensided wonders. Maybe even half of them could turn out nice.
> I know that as NANFans most of you would find the very thought
> abhorrent, but as a fish farmer, I wonder about these things.
> Has this ever been tried to anyone's knowledge?
> Is there already a redfinned, greensided version occurring naturally,
> most likely in the northeast Florida/southwest georgia area?
> Do you think that hypselopterus & stonei would even cross naturally if
> given the chance?
-
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/ For more information about NANFA, visit our web page, http://www.nanfa.org